Catel.Services.UIVisualizerService.OnCancelButtonClicked C# (CSharp) Method

        private async void OnCancelButtonClicked(IViewModel viewModel, EventHandler<UICompletedEventArgs> completedProc)
        {
            await viewModel.CancelAndCloseViewModel();
            completedProc?.SafeInvoke(this, new UICompletedEventArgs(viewModel, false));
            await CloseModal();
        }